Method for enabling auto-focus function, electronic device thereof, recording medium thereof, and computer program product using the method

Abstract

A method for enabling an auto-focus function, an electronic device thereof, a recording medium thereof, and a computer program product using the method are provided for the electronic device having a function of capturing images. In the present method, whether the electronic device is in a static state is first detected. If the electronic device is remained in the static state for a first time period, an auto-focus function is enabled and the electronic device is switched to the focusing mode. As a result, a user no longer needs to start the auto-focus function manually, and convenience and fluency of capturing images can be increased substantially.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the priority benefit of Taiwan application Ser. No. 97137592, filed on Sep. 30, 2008. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of specification.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a method for capturing images. More particularly, the present invention relates to a method for switching to a focusing mode during image capturing, an electronic device thereof, a recording medium thereof, and a computer program product using the same.[0004]2. Description of Related Art[0005]A commonly used digital cameral generally applies a two-stage shutter design. A first-stage shutter is mainly in charge of a focus function and setting an exposure value and a white balance value, and a second-stage shutter is in charge of enabling a capturing action. Therefore, when the digital camera having the two-st...

AI Technical Summary

Benefits of technology

The present invention provides a method for enabling an auto-focus function in an electronic device with a camera function. The method detects if the electronic device is in a static state for a specific time period and enables the auto-focus function if detected. This avoids the need for manual enabling of the auto-focus function, making it more convenient for capturing images. The method uses a static state detecting module that compares two preview images and detects the quantity of different points (difference in pixel brightness or edge positions) between the two images. The quantity of different points is compared to a predetermined value to determine if the electronic device is in a static state. The invention also includes an electronic device with a static state detecting module and an auto-focus module, and a computer program product for executing the method. The technical effect of the invention is to improve the convenience and fluency for capturing images by automatically enabling the auto-focus function when the electronic device is in a static state for a specific time period.

Problems solved by technology

However, a user who does not frequently use the digital camera may not know the digital camera has such two-stage shutter design, and accordingly the user may not know how to enable the auto-focus function.

However, the user usually can not know the exact timing to press the first-stage shutter for enabling the auto-focus function before capturing images.

Accordingly, a correctly focused and clear image cannot be successfully captured.

Images